MCQ On C Programming Language

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| By Allcompiler

Allcompiler

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Quizzes Created: 4 | Total Attempts: 23,166

Questions: 10 | Attempts: 12,957 | Updated: Mar 22, 2023

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Online MCQ Quiz on C Programming Language
No. Of Questions:- 10
Time:- 10 Minutes
Full Mark:- 100
Pass Mark:- 70

This Quiz if for those user who wants to test their command over the programming language.
for more MCQ Questions and Online MCQ Quiz please visit https://www. Allcompiler. Com

Questions and Answers

1.

C language has been developed by ?
- A.
  
  Ken Thompson
- B.
  
  Dennis Ritchie
- C.
  
  Peter Norton
- D.
  
  Martin Richards
Correct Answer
B. Dennis Ritchie

Explanation
Dennis Ritchie is the correct answer because he is widely recognized as the creator of the C programming language. Along with Ken Thompson, Ritchie developed C at Bell Labs in the early 1970s. C became popular due to its simplicity, efficiency, and ability to work closely with hardware, making it a foundational language for operating systems and low-level programming. Ritchie's contributions to C and other programming languages have had a significant impact on the field of computer science.

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2.

C can be used on ?
- A.
  
  Only MS-DOS
- B.
  
  Only Linux
- C.
  
  Only window
- D.
  
  All of the above
Correct Answer
D. All of the above

Explanation
C can be used on all of the above operating systems, including MS-DOS, Linux, and Windows. C is a widely used programming language that is platform-independent, meaning it can be compiled and executed on different operating systems. Therefore, it is not limited to any specific operating system and can be used on all of the mentioned platforms.

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3.

C programs are convrted into the machine language with the help of ?
- A.
  
  An editor
- B.
  
  Compiler
- C.
  
  An operating system
- D.
  
  None of the above
Correct Answer
B. Compiler

Explanation
C programs are converted into machine language with the help of a compiler. A compiler is a software tool that translates the high-level code written in C language into low-level machine code that can be directly executed by the computer's hardware. It performs various tasks such as lexical analysis, syntax analysis, semantic analysis, code optimization, and code generation to produce an executable program. Therefore, a compiler is the correct answer for converting C programs into machine language.

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4
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4.

The real constant in C can be expressed which of the following forms ?
- A.
  
  Fractional form only
- B.
  
  Exponetial form only
- C.
  
  ASCII form only
- D.
  
  Both Fractional and Exponetial
Correct Answer
D. Both Fractional and Exponetial

Explanation
The real constant in C can be expressed in both fractional and exponential forms. The fractional form represents a real number as a fraction, while the exponential form represents a real number as a base raised to an exponent. Both forms allow for the representation of real constants in C.

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5.

A character variable can at a time score ?
- A.
  
  1 character
- B.
  
  8 characters
- C.
  
  254 characters
- D.
  
  None of the above
Correct Answer
A. 1 character

Explanation
A character variable can only store one character at a time. This means that it can hold a single character value such as a letter, number, or symbol. It cannot store multiple characters or a string of characters. Therefore, the correct answer is 1 character.

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6.

The statement char ch='z' would store in ch
- A.
  
  The character Z
- B.
  
  ASCII value of Z
- C.
  
  Z along with the single inverted commas
- D.
  
  Both (1) and (2)
Correct Answer
B. ASCII value of Z

Explanation
The statement char ch='z' would store the ASCII value of the character 'z' in the variable ch. In ASCII, the character 'z' has a decimal value of 122. Therefore, the correct answer is the ASCII value of Z.

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7.

Which of the following is not a character constant ?
- A.
  
  'Thank You'
- B.
  
  'quest videos- IT Learning at its best'
- C.
  
  '23.56e-03'
- D.
  
  All of the above
Correct Answer
D. All of the above
8.

The maximun value that an integer constant can have is ?
- A.
  
  -32767
- B.
  
  32767
- C.
  
  1.7014e+38
- D.
  
  -1.7014e+38
Correct Answer
B. 32767

Explanation
The given answer, 32767, is the maximum value that an integer constant can have. This is because the range of a signed integer in most programming languages is typically from -32768 to 32767. Therefore, 32767 is the highest positive value that can be represented by an integer constant.

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9.

A C variable cannot start with ?
- A.
  
  An alphabet
- B.
  
  A number
- C.
  
  A special symbol other than underscore
- D.
  
  Both (2) and (3)
Correct Answer
D. Both (2) and (3)

Explanation
A C variable cannot start with a number or a special symbol other than an underscore. According to the C programming language rules, a variable name must start with an alphabet or an underscore, followed by any combination of alphabets, numbers, or underscores. Therefore, both options (2) and (3) are correct, as a C variable cannot start with a number or a special symbol other than an underscore.

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10.

Which of the following statements is wrong ?
- A.
  
  INT=123;
- B.
  
  Val='A' * 'B';
- C.
  
  Is=20 * 'T'
- D.
  
  Count+5=res;
Correct Answer
D. Count+5=res;

Explanation
The statement "count+5=res;" is wrong because it tries to assign a value to a variable "res" using an equation that includes the variable "count" and the number 5. However, the variable "count" has not been declared or assigned a value before this statement, so it is not possible to perform this assignment.

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Current Version
Mar 22, 2023

Quiz Edited by
ProProfs Editorial Team
Aug 20, 2011

Quiz Created by
Allcompiler

MCQ On C Programming Language

C language has been developed by ?

C can be used on ?

C programs are convrted into the machine language with the help of ?

The real constant in C can be expressed which of the following forms ?

A character variable can at a time score ?

The statement char ch='z' would store in ch

Which of the following is not a character constant ?

The maximun value that an integer constant can have is ?

A C variable cannot start with ?

Which of the following statements is wrong ?